For as long as she can remember, Amelia Carter has been in love with her older brother’s best friend. It started when she was twelve and he was fifteen—just a silly childhood crush that everyone expected her to outgrow. Except she never did. Every year, Amelia writes him a letter. A letter filled with everything she wishes she could say. A letter she never sends. Now, almost eighteen, she’s preparing for her final year before university when Noah returns home after two years away at college. He’s no longer the boy she used to follow around, and she’s no longer the little sister he barely noticed. But some secrets are harder to keep than others. Especially when seven years’ worth of unsent letters are waiting to be found.